Drying-machine.



PATENTED APR. 9, 1907.

J. M. SPENCER. DRYING MACHINE.

APPLICATION FILED DBO. 4, 1905.

FIG. 3.

wax 70R 5 5 UNITED, STATES PATENT OFFICE.

JOSEPH M. SPENCER, OF CINCINNATI, OHIO, ASSIGNOR TO CLEMENT L. HILS,

OF CINCINNATI, OHIO.

DRYING-MACHINE.

Specification of Letters Patent.

Patented Aprn 9, 1907.

Application filed December 4. 1905.- Serial No. 290.079.

-To all whom it may concern:

- quality of the finished product, while at the same-time economizing in the use of heat.

My invention consists of an open cylind ical receptacle provided with inwardly-ex- I tending teeth and adapted to be revolved, in combination with an outer casing having means therein for heating air and circulating said airthrough said receptacle.

My invention also consists in the parts and in the combination. and arrangement of those parts, as will hereinafter be more fully described, and pointed out in the claims.

In the drawings, Figure 1 is a cross-section of my improved drying-machine. Fig. 2 is a perspective view from the rear, and Fig. 3 is a similar view from the front, in both of which figures part of the casing and tubes are represented as broken away to better illustrate the interior construction of the machine.

My improved drying-machine is constructed substantially as follows: The casing 1. has the cylindrical receptacle 2 journaled in its ends, this being accomplished by bolting a stud or shaft 3, having the concentric base 4, to the solid end 5 of the receptacle and providing a suitable bearing 6 therefor in the end of the casing. Preferably the casing has its top 7 of semicylindrical shape, as shown. Considerable space is left within the casing 1 around the receptacle 2, and within this space are disposed the steam-tubes 8.

Adjoining the casing 1 and communicating therewith through the fan-casing 9 I provide the tower 10, open at the top and having the steam-tubes 11 disposed therein.

The steam-tubes 8 and 11 are made continuous by means of return-bends, as at 12, from the inlet 13 to the outlet 14, so that a continuous circulation of steam may be maintained through the tubes.

Within the fan-casing 9 is mounted the fan 15 on the shaft 16, which is journaled at 17 and 18 and has means for rotating it, as at 19. When the fan 15 is rotated, air will be circulated downward through the tower 10 around the steam-tubes 11 and heated thereby. Saidair will likewise be forced upward around the tubes 8 and further heated.

The receptacle 2 is composed of a cylindrical framework 20, upon which is supported a network 21, adapted to allow the air to circulate through the receptacle and at the same time retain the substance to be dried therein. Inwarclly-extending tines or teeth ,22 are mounted in the framework 20. One of the studs or shafts 3 has a tight and a loose pulley 23 and 2 1, and I also prefer to mount rigidly thereon a gear-wheel 25 in mesh with a pinion 26, rotatively mounted on the casing 1 for the purpose of causing the receptacle 2 to rotate more steadily.

The receptacle 2 is provided with an outwardly-opening door or lid 27 for the purpose of inserting and removing the substance to be dried, and the casing 1 has the outwardlyopening door 28 to permit access to the door or lid 27 and to the inside of the machine in general. Leading from the top of the casing 1 into the tower 10 are the ducts or flues 29 for the purpose of conducting the air from the casing back into the tower after having been superheated by steam-tubes within the casing, and especially those above the receptacle, as shown.

The fibrous substance to be dried, such as wool, is placed in the receptacle 2 and the receptacle revolved in the direction of the large white arrow, while at the same time steam is allowed to circulate through the steam-tubes 8 and 11 and air is circulated around said tubes and through said receptacle by means of the fan 15. thus heated and coming into contact with the substance absorbs the moisture therefrom whether said moisture be present as a result of washing, dyeing, or other treatment of the substance, and being superheated, and thus made capable of absorbing still more of the moisture, is led back, by means of the ducts 29, into the tower to be used again. The tines or teeth 22 are curved in the di rection of rotation of the receptacle 2 and are adapted to hold the fibrous substance, continually carrying it up and letting it fall,

The air being thus separating the fibers, facilitating the l steam-heating coils communicating with the I 5 drying, and improving the quality of the j heating-coils in the inclosing casing, a fan substance. L While I have shown and described a pecul 1ar construction herein, I do not Wish to be understood as limiting myself to it but What I desire to secure by Letters Patent I i In a drying-machine, an inclosing casing,

an open'cylindrical receptacle,- means for retatlng said receptacle, inwardly-extendin g teeth in said receptacle, steam-heating ccils between said tower and inclosing casing adapted to force heated air from the heatlngtower into the inclnsing casing andfa returnduct near the top ofsaidinclosing casing and heating-tower whereby the air is forced to return from the inclosing casing to the heating-tower to be superheated for the purpose of being used repeatedly.

J OSEPH, M. SPENCER Witnesses:

JAMES N. RAMSEY, NANNIE J. NEWMIRE. 

